Quarterly Percent
2000-04-01 49.4
2001-04-01 49.2
2002-04-01 48.5
2003-04-01 46.8
2004-04-01 46.1
2005-01-01 45.4
2005-04-01 44.9
2005-07-01 44.6
2005-10-01 44.2
2006-01-01 44.7
2006-04-01 44.1
2006-07-01 43.4
2006-10-01 43.5
2007-01-01 43.9
2007-04-01 43.1
2007-07-01 42.8
2007-10-01 43.0
2008-01-01 43.0
2008-04-01 42.2
2008-07-01 42.1
2008-10-01 41.9
2009-01-01 42.1
2009-04-01 41.4
2009-07-01 41.5
2009-10-01 41.4
2010-01-01 41.6
2010-04-01 41.2
2010-07-01 41.2
2010-10-01 41.2
2011-01-01 41.2
2011-04-01 40.7
2011-07-01 40.9
2011-10-01 40.3
2012-01-01 40.2
2012-04-01 39.1
2012-07-01 38.6
2012-10-01 38.3
2013-01-01 38.5
2013-04-01 37.7
2013-07-01 37.0
2013-10-01 36.7
2014-01-01 36.8
2014-04-01 36.4
2014-07-01 35.9
2014-10-01 35.4
2015-01-01 35.8
2015-04-01 35.2
2015-07-01 34.6
2015-10-01 34.3
2016-01-01 34.1
2016-04-01 33.5
2016-07-01 33.2
2016-10-01 32.9
2017-01-01 33.2
2017-04-01 32.2
2017-07-01 31.9
2017-10-01 31.5
2018-01-01 31.7
2018-04-01 31.1
